The Gourmand Cooking School runs short cooking courses at its small campus. Management has identified two cost drivers it uses in its budgeting and performance reports-the number of courses and the total number of students. For example, the school might run two courses in a month and have a total of 61 students enrolled in those two courses. Data concerning the company's cost formulas appear below: Instructor wages Classroom supplies Utilities Campus rent Insurance Administrative expenses Fixed Cost per Month Cost per Course $2,920 Cost per Student $ 300 $ 1,230 $ 70 $ 5,100 $ 2,000 $ 3,600 $ 44 $ 3 For example, administrative expenses should be $3,600 per month plus $44 per course plus $3 per student. The company's sales should average $860 per student. The company planned to run four courses with a total of 61 students; however, it actually ran four courses with a total of only 51 students. The actual operating results for September appear below: Actual Revenue Instructor wages Classroom supplies Utilities Campus rent Insurance Administrative expenses Required: $ 49,560 $ 10,960 $18,150 $ 1,920 $ 5,100 $ 2,140 $ 3,385 1. Prepare the company's planning budget for September. 2. Prepare the company's flexible budget for September. 3. Calculate the revenue and spending variances for September.